Lessons

parabola: a curve formed from all the points that are equidistant from the focus and the directrix.vertex: midway between the focus and the directrixfocus: a point inside the paraboladirectrix: a line outside the parabola and perpendicular to the axis of symmetry

conics formula for parabola:p=14ap = \frac{1}{{4a}}p=4a1​p: distance between the vertex and the focus / directrix. a: coefficient of the squared term